HI Noriyuki
Output capacitor should have low ESR in case of REF3012. So It is not recommended to put resistor.
Noise improvement with resistor in series with cap depends on the internal architecture of the reference. REF5050 and REF3012 have different…
Additional tests performed:
1. Removed voltage reference (REF5050) and that did not make any difference. Ran up to 75C and same issue.
No_REF5050_but_VREF_jumps_to_2V5
What is weird is that after FPGA talks to DACs the VREF jumps from 0V to 2…
Hello Danilo,
Yes, the internal reference is included as a convenience when the application only requires good AC specifications and not good DC or gain accuracy. If the customer needs better accuracy, then it is suggested to use an external reference…
Part Number: ADS1119 Hi team, We are using ADS1119IPWT to read the analog values from a sensor. The DVDD is set to 3.3V. The AVDD is set to 5V. my input voltage is in the range of 0 -5V. 1). Can I use the internal 2.048 reference voltage for the measurement…
Part Number: LM27762 Other Parts Discussed in Thread: INA821 , , TPS7A39
Based on my device it needs to be low noise between 0.1-20Hz. My +-5v is mainly for the ina821 instrumentation amplifier, which has a PSRR of 120db.
1.8VLDO(REF5050+REF3318)…
Hello Javier,
You can determine the expected output voltage by looking at the part number you ordered. This table in the datasheet can help differentiate that:
Javier Cebrián said: Our problem with the device is related with the output voltage obtained…
Hi
Please refer to the following post:
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1099300/ref5050-pspice-for-ti-cannot-simulate--5v-using-ref5050
Regards
Trailokya
Hi
Below are the files for training
4505L - Reference drive Hands-on.pdf
NPU- Enable low power precision data conversion with industry’s lowest-IQ voltage reference.pdf
Regards
Trailokya
Dear Mr. Hall
Thank you for your response. To your points:
One quick question though...what is the nominal bridge impedance? Is it a typically a 1kOhm load (with respect to the excitation source)?
The bridge is a 3.5K bridge. All for legs are 3…
Chris,
Thank you very much for considered, informative and encouraging response, I really do appreciate it! I've incorporated each of your suggestions in an updated schematic, which is posted below:
As per my original post, here are some notes/comments…
